It is often hidden in \AppData\Roaming\RenPy . You can type %APPDATA% into your file explorer address bar to find it.

To completely wipe all traces of Ren’Py from your system, you must manually delete your project folders. if you want to keep your work.

To uninstall Ren'Py, you simply where you originally unzipped it. Ren'Py does not use a traditional installer and will not appear in your system's Control Panel or "Add/Remove Programs" list. Quick Removal Steps